Cosmetic or pharmaceutical composition in solid form comprising bis-acyl-amides

ABSTRACT

The present application relates to a composition, in particular a cosmetic or pharmaceutical composition, which is in solid form, comprising an oily phase and at least one compound of formula (I) below: 
     R—CO—NH—A—NH—CO—R′ 
     in which R and R′ represent a hydrogen atom or a hydrocarbon-based chain; and A represents a hydrocarbon-based chain.

[0001] The present invention relates to a solid composition, inparticular a solid cosmetic or pharmaceutical composition, such as acare, treatment and/or make-up composition for the skin, including thescalp, and/or for the lips of human beings, the said compositioncomprising a thickened liquid fatty phase and being in particular in theform of a stick or tube of make-up, such as a lipstick.

[0002] It is common practice to use a structured, i.e. thickened orgelled, liquid fatty phase in compositions, in particular cosmetic anddermatological compositions, in order to obtain the desired consistency.The thickening of oils (or of phases that are liquid at roomtemperature) in particular makes it easier to take up the product fromits packaging without any significant loss, to limit the diffusion ofthe product to the local treatment area, to distribute the productuniformly over the local treatment area or to be able to use the productin amounts that are sufficient to obtain the desired cosmetic ordermatological effect. This is especially the case in solid compositionssuch as deodorants, lip balms and lipsticks, concealer products and castfoundations. This thickening is of prime importance in particular forcare, hygiene or make-up compositions such as lip sticks which need tobe distributed homogeneously over the local surface to be treated, aswell as for hair compositions which need to be spread and distributeduniformly along the keratin fibres and not run down the forehead, thenape of the neck, the face or into the eyes.

[0003] To overcome these problems, use is usually made of waxes orfillers. Unfortunately, these waxes and/or fillers have a tendency tomake the composition matt and opaque, which is not always desirable, inparticular for a lipstick. Specifically, women are always in search of alipstick in the form of a tube which gives a glossy film; moreover,certain compositions such as lip balms or ointments can be in the formof translucent, or even transparent, sticks.

[0004] It is also known practice to thicken oils with polymericthickeners. Unfortunately, the known thickeners for oils have to be usedin large amounts in order to obtain a gel of high viscosity, for exampleof greater than 1.3 Pa.s. However, too large an amount of thickener cangive the composition inadequate cosmetic properties, in particular asticky feel and a lack of slipperiness, these drawbacks potentiallybeing very inconvenient, or even unacceptable.

[0005] Moreover, it is also known practice to gel compositions, inparticular cosmetic compositions, using a gelling agent of trialkyltri(alkylamino-carbonyl)cyclohexane type. These gelling agents make itpossible to improve the stability of the compositions comprising them.However, once again, the gels obtained have poor transparency.Furthermore, a large proportion of these gelling agents do not allowoily silicone media to be gelled.

[0006] Finally, it is known practice to thicken cosmetic compositionswith diamide derivatives, especially in documents JP7/138 555 andJP10/237 034. However, the cosmetic compositions disclosed in the saidprior art all comprise a large amount of waxes (beeswax, ozokerite orhexadecanoic acid in particular). The structuring and gelation of thestick therefore does not take place solely due to the diamide compounds,but also due to the waxes. However, using a large amount of waxes hascertain drawbacks, especially in terms of the matt effect or opacity ofthe final composition thus prepared.

[0007] Furthermore, it is not possible to incorporate silicone oils inlarge amount into a composition also comprising conventional waxes.

[0008] One object of the present invention is to propose the productionof a composition, in particular a cosmetic composition, which is insolid form, and which preferably comprises little or even no waxes,while at the same time being capable, firstly, of retaining goodcosmetic properties, and in particular a certain level of translucency,or even transparency, and, secondly, of comprising silicone oils, inparticular in large amount.

[0009] One subject of the invention is thus a composition, in particulara cosmetic or pharmaceutical composition, which is in solid form,comprising an oily phase and at least one compound of formula (I) below:

R—CO—NH—A—NH—CO—R′

[0010] in which:

[0011] R and R′, which may be identical or different, represent ahydrogen atom or a saturated or unsaturated, linear, branched or cyclic,preferably a saturated linear, hydrocarbon-based chain containing from 1to 22 carbon atoms, in particular 6-18 carbon atoms, preferably from 10to 14 carbon atoms, more preferably from 11 to 13 carbon atoms andbetter still 11 carbon atoms, optionally substituted with one or moregroups chosen from aryl (—C₆II₅), ester (—COOR″ with R″ being an alkylgroup containing 2 to 12 carbon atoms), amide (—CONHR″ with R″ being analkyl group containing 2 to 12 carbon atoms), urethane (—OCONHR″ with R″being an alkyl group containing 2 to 12 carbon atoms) and urea(—NHCONHR″ with R″ being an alkyl group containing 2 to 12 carbon atoms)groups; and/or optionally containing 1 to 3 hetero atoms chosen from O,S and N; and/or optionally substituted with 1 to 4 halogen atoms, inparticular fluorine atoms, and/or with 1 to 3 hydroxyl radicals, oncondition that R and R′ are other than hydrogen, and

[0012] A represents a saturated or unsaturated, linear, cyclic orbranched hydrocarbon-based chain (in the form of a divalent radical)containing 1 to 18 carbon atoms, in particular 2 to 12 carbon atoms andpreferably from 4 to 10 carbon atoms, optionally substituted with one ormore groups chosen from aryl (—C₆H₅), ester (—COOR″ with R″ being analkyl group containing 2 to 12 carbon atoms), amide (—CONHR″ with R″being an alkyl group containing 2 to 12 carbon atoms), urethane(—OCONHR″ with R″ being an alkyl group containing 2 to 12 carbon atoms)and urea (—NHCONHR″ with R″ being an alkyl group containing 2 to 12carbon atoms) groups; and/or optionally containing 1 to 3 hetero atomschosen from O, S and N; and/or optionally substituted with 1 to 4halogen atoms, in particular fluorine atoms, and/or with 1 to 3 hydroxylradicals.

[0013] Specifically, it is been found that using the compounds offormula (I) makes it possible to structure and thicken liquid (or oily)fatty phases substantially, or even to gel them completely, and thus toobtain stable cosmetic compositions in solid gelled form, which havesatisfactory cosmetic properties. These compositions may even be free ofwaxes while at the same time retaining their rigidity and their goodcosmetic properties. Moreover, the liquid fatty phase may be gelled eventhough it comprises a large amount of silicone oils.

[0014] The composition according to the invention has good cosmeticproperties: it is not sticky when applied and is slippery and easy toapply. It produces a homogeneous, uniform film which covers well and iscomfortable to wear.

[0015] Furthermore, the composition may advantageously be clear,transparent or translucent. These terms are understood as having theirconventional dictionary definitions. Thus, a translucent compositionallows light to pass through without, however, allowing the contours ofobjects to be clearly distinguished. A transparent composition allowslight to pass through easily and allows objects to be distinguishedclearly through its thickness.

[0016] In general, a transparent composition will have a maximum lighttransmittance value, irrespective of the wavelength, of between 400 nmand 800 nm, through a 1 cm thick sample, of between 35% and 100% andpreferably of at least 50% (see EP 291 334). A translucent compositionwill have a maximum light transmittance value of between 2% and 35%. Thetransmittance can be measured by placing a 1 cm thick sample in thelight beam of a spectrophotometer working in the wavelengths of thelight spectrum.

[0017] The composition according to the invention thus comprises atleast one compound corresponding to formula (I) below:

R—CO—NH—A—NH—CO—R′

[0018] in which:

[0019] R and R′, which may be identical or different, represent ahydrogen atom or a saturated or unsaturated, linear, branched or cyclic,preferably a saturated linear, hydrocarbon-based chain containing from 1to 22 carbon atoms, in particular 6-18 carbon atoms, preferably from 10to 14 carbon atoms, more preferably from 11 to 13 carbon atoms andbetter still 11 carbon atoms, optionally substituted with one or moregroups chosen from aryl (—C₆H₅), ester (—COOR″ with R″ being an alkylgroup containing 2 to 12 carbon atoms), amide (—CONHR″ with R″ being analkyl group containing 2 to 12 carbon atoms), urethane (—OCONHR″ with R″being an alkyl group containing 2 to 12 carbon atoms) and urea(—NHCONHR″ with R″ being an alkyl group containing 2 to 12 carbon atoms)groups; and/or optionally containing 1 to 3 hetero atoms chosen from O,S and N; and/or optionally substituted with 1 to 4 halogen atoms, inparticular fluorine atoms, and/or with 1 to 3 hydroxyl radicals, oncondition that R and R′ are other than hydrogen, and

[0020] A represents a saturated or unsaturated, linear, cyclic orbranched hydrocarbon-based chain (in the form of a divalent radical)containing 1 to 18 carbon atoms, in particular 2 to 12 carbon atoms andpreferably from 4 to 10 carbon atoms, optionally substituted with one ormore groups chosen from aryl (—C₆H₅), ester (—COOR″ with R″ being analkyl group containing 2 to 12 carbon atoms), amide (—CONHR″ with R″being an alkyl group containing 2 to 12 carbon atoms), urethane(—OCONHR″ with R″ being an alkyl group containing 2 to 12 carbon atoms)and urea (—NHCONHR″ with R″ being an alkyl group containing 2 to 12carbon atoms) groups; and/or optionally containing 1 to 3 hetero atomschosen from O, S and N; and/or optionally substituted with 1 to 4halogen atoms, in particular fluorine atoms, and/or with 1 to 3 hydroxylradicals.

[0021] The expression “unsaturated hydrocarbon-based chain” means achain which comprises at least one C═C double bond or at least one C.Ctriple bond, it being possible, needless to say, for the said chain alsoto be optionally substituted with one or more groups chosen from aryl,ester, amide, urethane and urea groups; and/or optionally to compriseone or more hetero atoms chosen from O, S and N; and/or to be optionallysubstituted with one or more fluorine atoms and/or hydroxyl radicals.

[0022] The expression “hydrocarbon-based chain comprising an oxygen,sulphur or nitrogen atom” means in particular a hydrocarbon-based chaincomprising a carbonyl (—C═O), amine (—NH₂ or —NH—), thiol (—SH), thioether or ether group.

[0023] Advantageously, A represents a divalent radical with a saturatedcyclic hydrocarbon-based chain containing from 4 to 10 carbon atoms.

[0024] According to one preferred embodiment of the compositionaccording to the invention, the radicals R and R′ of the compounds offormula (I) are identical.

[0025] The compounds preferably correspond to formula (I) in which:

[0026] 1/

[0027] A represents a saturated or unsaturated, preferably saturated,but non-aromatic, optionally branched hydrocarbon-based ring (in theform of a divalent radical) containing from 4 to 12 carbon atoms, inparticular from 5 to 7 carbon atoms, optionally substituted with thesubstituents mentioned above and/or optionally comprising one or morehetero atoms and/or optionally substituted with one or more halogensand/or hydroxyl radicals;

[0028] R and R′, which may be identical or different, represent ahydrogen atom or a saturated or unsaturated, linear, branched or cyclic,preferably a saturated linear, hydrocarbon-based chain containing from10 to 16 carbon atoms, in particular 10 to 14 carbon atoms or even from12 to 14 carbon atoms and better still 11 carbon atoms, on conditionthat R and R′ are other than hydrogen,

[0029] 2/

[0030] A represents a saturated, linear or branched hydrocarbon-basedchain (in the form of a divalent radical) containing from 2 to 18 carbonatoms, in particular from 3 to 12 carbon atoms, optionally substitutedwith the substituents mentioned above, and/or optionally comprising oneor more hetero atoms and/or optionally substituted with one or morehalogens and/or hydroxyl radicals;

[0031] R and R′, which may be identical or different, represent ahydrogen atom or a saturated or unsaturated, linear, branched, or cyclichydrocarbon-based chain, preferably a saturated linear hydrocarbon-basedchain, containing from 10 to 20 carbon atoms, in particular from 11 to18 carbon atoms, preferably from 11 to 13 carbon atoms and better still11 carbon atoms, on condition that R and R′ are other than hydrogen, oralternatively

[0032] 3/

[0033] A represents an aryl or aralkyl ring (in the form of a divalentradical) containing from 6 to 12 carbon atoms, in particular from 6 to 8carbon atoms, optionally substituted with the substituents mentionedabove and/or optionally comprising one or more hetero atoms and/oroptionally substituted with one or more halogens and/or hydroxylradicals;

[0034] R and R′, which may be identical or different, represent ahydrogen atom or a saturated or unsaturated, linear, branched or cyclichydrocarbon-based chain, preferably a saturated linear hydrocarbon-basedchain, containing from 6 to 18 carbon atoms, in particular from 10 to 16carbon atoms, preferably comprising from 11 to 13 carbon atoms and morepreferably containing 11 carbon atoms, on condition that R and R′ areother than hydrogen.

[0035] In particular, the radical A can represent a divalent radical ofcyclohexylene (in particular 1,2-cyclohexylene, 1,3-cyclohexylene,1,4-cyclohexylene, preferably 1,2-cyclohexylene), ethylene, propylene,isopropylene, butylene, isobutylene, pentylene, hexylene, dodecylene,dodecanylene, benzylene, phenylene, methylphenylene, bis-phenylene ornaphthalene type; preferably A may be a divalent radical ofcyclohexylene, ethylene, propylene, isopropylene, dodecylene ormethylphenylene type.

[0036] The radicals R and R′ may be chosen, independently of each other,from pentyl, hexyl, decyl, undecyl, dodecyl, pentadecyl, hexadecyl,heptadecyl, octadecyl, 3-dodecyloxypropionyl, 3-octadecyloxy-propionyl,3-dodecyloxypentyl, 3-octadecyloxypentyl and 11-hydroxyheptadecylradicals. Preferably, R and R′ may be chosen, independently of eachother, from decyl, undecyl and dodecyl radicals. R and R′ areadvantageously identical.

[0037] When the radical A is cyclic and in particular is acyclohexylene, the radicals R—CO—NH— and R′—CO—NH— may be in an ortho,meta or para position; moreover, these radicals may be in a cis or transposition relative to each other. The compound of formula (I) maymoreover comprise a mixture of the cis compound and of the transcompounds (racemic mixture or 1R, 2R or 1S, 2S enantiomers, or mixturesthereof in variable proportion). The stereochemistry of the compound offormula (I) in fact corresponds to the stereochemistry of the diamine offormula H₂N—A—NH₂ used during the preparation of the compounds, whichpreparation is described below.

[0038] The compounds of formula (I) are preferably chosen from thecompounds corresponding to one of the following formulae:

[0039] in which R and R′ have the same meanings as above.

[0040] Among the compounds which may be used in the context of theinvention, mention may be made of:

[0041] N,N′-bis(dodecanoyl)-1,2-diaminocyclohexane, in particular intrans form (compound of formula (I) with R═R′=n-C₁₁H₂₃ andA=1,2-cyclohexylene divalent radical, also known as(2-dodecanoylaminocyclohexyl)dodecanamide. This compound is described inparticular in Hanabusa, K; Angew. Chem., 108, 1997, 17, pages 2086-2088

[0042] N,N′-bis(dodecanoyl)-1,3-diaminocyclohexane, in particular intrans form (compound of formula (I) with R═R′=n-C₁₁H₂₃ andA=1,3-cyclohexylene divalent radical, also known as(3-dodecanoylaminocyclohexyl)dodecanamide

[0043] N,N′-bis(dodecanoyl) 1,4-diaminocyclohexane, in particular intrans form (compound of formula (I) with R=n-C₁₁H₂₃ andA=1,4-cyclohexylene divalent radical, also known as(4-dodecanoylaminocyclohexyl)dodecanamide)

[0044] N,N′-bis(dodecanoyl)-1,2-ethylenediamine (compound of formula (I)with R═R′=n-C₁₁H₂₃ and A 1,2-ethylene divalent radical, also known as(2-dodecanoylaminoethyl)dodecanamide)

[0045] N,N′-bis(dodecanoyl)-1-methyl-1,2-ethylenediamine (compound offormula (I) with R—R′=n-C₁₁H₂₃ and A=1-methyl-1,2-ethylene divalentradical, also known as (2-dodecanoylamino-2-methylethyl)dodecanamide)

[0046] N,N′-bis(dodecanoyl)-1,3-diaminopropane (compound of formula (I)with R═R′=n-C₁₁H₂₃ and A=1,3-propylene divalent radical, also known as(2-dodecanoylamino-propyl)dodecanamide)

[0047] N,N′-bis(dodecanoyl)-1,12-diaminododecane (compound of formula(I) with R═R′=n-C₁₁H₂₃ and A=1,12-dodecylene divalent radical, alsoknown as (2-dodecanoylaminododecyl)dodecanamide)

[0048] N,N′-bis(dodecanoyl)-3,4-diaminotoluene (compound of formula (I)with R═R′=n-C₁₁H₂₃ and A=1-methyl-3,4-phenylene divalent radical, alsoknown as (2-dodecanoylamino-4-methylphenyl)dodecanamide).

[0049] The compounds of formula (I) can be prepared according toprocesses that are well known to those skilled in the art.

[0050] In particular, they may be obtained by reacting a diamineH₂N—A—NH₂ with an acid chloride RCOCl and/or R′COCl with R and R′ havingthe above meaning, but other than a hydrogen atom, in an organic solventmedium which is compatible for carrying out the reaction (1 mol of acidchloride is used per 1 mol of diamine if it is desired to obtain acompound of formula (I) containing only one group R other than ahydrogen atom, or 2 mol of acid chloride RCOCl and/or R′COCl if it isdesired to obtain a compound of formula (II) with R and R′ other than ahydrogen atom). The reaction is preferably carried out in the presenceof a base capable of neutralizing the formation of the HCl releasedduring the reaction. The diamide formed is extracted from the reactionmedium according to the conventional extraction techniques that are wellknown to those skilled in the art.

[0051] The compound of formula (I) is preferably present in thecomposition in an amount which may readily be determined by a personskilled in the art depending on the desired effect, and which may bebetween 1% and 40% by weight, for example between 2% and 15% by weight,relative to the total weight of the composition, and better stillbetween 4% and 12% by weight, or even between 5% and 10% by weight.

[0052] It has moreover been observed that even the use of a small amountof compounds of formula (I), for example about 2-6% by weight, can leadto an adequate gelation of the composition according to the invention.This is due to the high thickening power of the compounds of formula I,which enables them to be effective at low concentration, of about 4-8%by weight, whereas it would be necessary to use 10-20% by weight ofcommon gelling agents in order to obtain an equivalent result.

[0053] Without being bound by the present explanation, it has beenobserved that the structuring, or gelation, of oils by means of thecompounds of formula (I) may be due to the formation of piles in theform of columns of the molecules of compounds of formula (I), resultingin the formation of a network of fibres or lamellae, consisting of thesaid compounds of formula (I) and the oils, the said network notscattering light, resulting in a certain level of translucency, or eventransparency.

[0054] The compounds of formula (I) can be used in particular, alone oras a mixture, in a composition which comprises a physiologicallyacceptable medium, in particular in a cosmetic composition which thusmoreover comprises a cosmetically acceptable medium.

[0055] This physiologically acceptable medium, its constituents, theiramount, the pharmaceutical form of the composition and the method forpreparing it, may be chosen by a person skilled in the art on the basisof his general knowledge depending on the type of composition desired.

[0056] Generally, the composition according to the invention comprises,in an oily phase, at least one cosmetically or dermatologicallyacceptable oil, a fatty substance which is liquid at room temperature(25° C.).

[0057] These oils can be hydrocarbon-based oils and/or silicone oilsand/or fluoro oils. They can be of animal, plant, mineral or syntheticorigin.

[0058] Mention may be made in particular of:

[0059] hydrocarbon-based oils of animal origin such as perhydrosqualene;

[0060] hydrocarbon-based plant oils such as liquid triglycerides offatty acids of 4 to 10 carbon atoms, for instance heptanoic or octanoicacid triglycerides; sunflower oil, corn oil, soybean oil, marrow oil,grapeseed oil, groundnut oil, sweet almond oil, beauty-leaf oil, palmoil, sesame oil, hazelnut oil, apricot oil, macadamia oil, castor oil,avocado oil; caprylic/capric acid triglycerides, for instance those soldby the company Stearineries Dubois or those sold under the names Miglyol810, 812 and 818 by the company Dynamit Nobel; jojoba oil, karitebutter;

[0061] linear or branched hydrocarbons of mineral or synthetic origin,such as liquid paraffins and derivatives thereof, petroleum jelly,polydecenes, and hydrogenated polyisobutene such as parleam;

[0062] synthetic esters and ethers, in particular of fatty acids, forinstance the oils of formula R₃COOR₄ in which R₃ represents a higherfatty acid residue containing from 7 to 29 carbon atoms and R₄represents a hydrocarbon-based chain containing from 3 to 30 carbonatoms, such as, for example, purcellin oil (cetostearyl ocatanoate),isopropyl myristate, 2-ethylhexyl palmitate, 2-octyldodecyl stearate,2-octyldodecyl erucate, isostearyl isostearate; hydroxylated esters suchas isostearyl lactate, octyl hydroxystearate, octyldodecylhydroxystearate, diisostearyl malate, triisocetyl citrate, and fattyalkyl heptanoates, octanoates and decanoates; polyol esters, forinstance propylene glycol dioctanoate, neopentyl glycol diheptanoate ordiethylene glycol diisononanoate; and pentaerythritol esters; tridecyltrimellitate;

[0063] fatty alcohols containing from 12 to 26 carbon atoms, forinstance octyldodecanol, 2-butyloctanol, 2-hexyldecanol,2-undecylpentadecanol or oleyl alcohol;

[0064] partially hydrocarbon-based and/or silicone-containing fluorooils;

[0065] silicone oils, for instance volatile or non-volatile, linear orcyclic polymethylsiloxanes (PDMSs); alkyldimethicones; siliconesmodified with aliphatic and/or aromatic groups, which are optionallyfluorinated, or with functional groups such as hydroxyl, thiol and/oramine groups; phenylsilicone oils such as polyphenylmethylsiloxanes orphenyltrimethicones;

[0066] mixtures thereof.

[0067] The oils used can be volatile and/or non-volatile. The term“volatile oil” means an oil which is capable of evaporating at roomtemperature from a support onto which it has been applied, in otherwords an oil which has a measurable vapour pressure at 25° C. and 1atmosphere, for example greater than 0 Pa, in particular ranging from10⁻³ mmHg to 300 mmHg (0.13 Pa to 40,000 Pa).

[0068] Mention may be made in particular of volatile silicone oils, suchas volatile cyclic or linear silicones, and cyclocopolymers. Mention mayalso be made of volatile hydrocarbon-based oils such as isoparaffins,and volatile fluoro oils.

[0069] In one specific embodiment, the volatile oils can constitute themajority of the oily phase. Thus, they can be present therein in aproportion of at least 50% by weight, in particular at least 75% byweight, or even 100% by weight, of the said oily phase.

[0070] In another preferred embodiment, the oily phase may comprisesilicone oils, in particular in a large amount of about 40-80% by weightof the oily phase, in particular of about 60-75% by weight; the oilyphase may also comprise 100% by weight of silicone oil, while at thesame time remaining entirely stable and solid.

[0071] The oils can be present in the composition in a proportion offrom 5% to 99% by weight relative to the total weight of thecomposition, preferably from 20% to 75% by weight.

[0072] The composition according to the invention is preferably in solidform. This means that, in the absence of mechanical or thermalstimulation (in particular heating), no collapse of the composition isobserved when it is outside the container containing

[0073] The composition has the conventional viscoelastic behaviour of acomposition of solid type.

[0074] Moreover, the hardness of the composition according to theinvention is preferably such that the composition is self-supporting andcan disintegrate readily to form a satisfactory deposit on the skin andthe lips. This hardness can be between 0.04 N and 3 N, preferablybetween 0.1 N and 2.5 N and in particular between 0.2 N and 2 N. Thishardness can be measured according to a method of penetration of a probeinto the said composition and in particular using a texture analyser(for example TA-XT2 from Rheo) equipped with an acrylic cone with anapex angle of 45°. The hardness measurement is carried out at 22° C. atthe centre of 5 samples of the said composition, according to the methoddescribed in the examples.

[0075] This composition advantageously comprises little or even no wax,while at the same time retaining adequate solidity/rigidity/hardness.This means that the composition comprises less than about 5% by weightof wax, relative to the total weight of the composition, preferably lessthan 2% by weight, or even less than 0.5% by weight, of wax. Thecomposition preferentially contains no waxes (i.e. 0%).

[0076] For the purposes of the present invention, a wax is a lipophilicfatty compound, which is solid at room temperature (about 25° C.),undergoes a reversible solid/liquid change of state, has a melting pointof greater than about 40° C. which may be up to 200° C., and has ananisotropic crystal organization in the solid state.

[0077] For the purpose of the present application, the waxes are thosegenerally used in the cosmetic and pharmaceutical fields.

[0078] They are, in particular, natural waxes of animal, plant ormineral origin, such as beeswax, montan wax, carnauba wax, candelillawax, China wax, flax wax, pine wax, cotton wax, ouricury wax, lignitewax, rice bran wax, sugar cane wax, Japan wax or cork fibre wax.

[0079] Mention may also be made of paraffin waxes, microcrystallinewaxes, lanolin wax, ozokerites, hydrogenated oils with a melting pointof greater than about 40° C., for instance hydrogenated jojoba oil,polyethylene waxes derived from the polymerization of ethylene, waxesobtained by Fischer-Tropsch synthesis, fatty acid esters and glycerideswith a melting point of greater than about 40° C., and silicone waxes,for instance alkyl, alkoxy and/or esters of poly(di)methylsiloxane thatare solid at 40° C.

[0080] The composition according to the invention can moreover comprisethe constituents usually used in the type of application envisaged.

[0081] It can comprise one or more organic solvents chosen in particularfrom:

[0082] ketones that are liquid at room temperature, such as methyl ethylketone, methyl isobutyl ketone, diisobutyl ketone, isophorone,cyclohexanone or acetone;

[0083] alcohols that are liquid at room temperature, such as ethanol,isopropanol, diacetone alcohol, 2-butoxyethanol or cyclohexanol;

[0084] glycols that are liquid at room temperature, such as ethyleneglycol, propylene glycol or pentylene glycol;

[0085] propylene glycol ethers that are liquid at room temperature, suchas propylene glycol monomethyl ether, propylene glycol monomethyl etheracetate or dipropylene glycol mono-n-butyl ether;

[0086] short-chain esters (containing from 3 to 8 carbon atoms in total)such as ethyl acetate, methyl acetate, propyl acetate, n-butyl acetateor isopentyl acetate;

[0087] ethers that are liquid at room temperature, such as diethylether, dimethyl ether or dichlorodiethyl ether;

[0088] alkanes that are liquid at room temperature, such as decane,heptane, dodecane or cyclohexane;

[0089] cyclic aromatic compounds that are liquid at room temperature,such as toluene and xylene;

[0090] aldehydes that are liquid at room temperature, such asbenzaldehyde and acetaldehyde.

[0091] It is also possible to incorporate a hydrophilic phase into thecomposition according to the invention, in particular in an amount of0-10% by weight relative to the total weight of the composition, andbetter still 1-5% by weight, which can comprise hydrophilic activeagents and/or hydrophilic gelling agents. It can in particular comprisemoisturizers such as glycerol.

[0092] The composition advantageously comprises a dyestuff which can bechosen from the lipophilic dyes, hydrophilic dyes, pigments and nacresusually used in cosmetic or dermatological compositions, and mixturesthereof. This dyestuff is generally present in a proportion of from0.01% to 40% relative to the total weight of the composition, preferablyfrom 5% to 25% by weight.

[0093] Thus, the composition can comprise a particulate phase, which isgenerally present in a proportion of 0-30% by weight, preferably 0-20%by weight, and which can comprise pigments and/or nacres and/or fillersusually used in cosmetic compositions. The term “pigments” should beunderstood as meaning white or coloured, mineral or organic particlesintended to colour and/or opacify the composition. The term “fillers”should be understood as meaning colourless or white, mineral orsynthetic, lamellar or non-lamellar particles intended to give body orrigidity to the composition, and/or softness, a matt effect anduniformity to the make-up result. The term “nacres” should be understoodas meaning iridescent particles which reflect light.

[0094] The pigments can be white or coloured, mineral and/or organic, ofmicrometric or nanometric size. Mineral pigments which may be mentionedinclude titanium dioxide, zirconium dioxide or cerium dioxide, and alsozinc oxide, iron oxide or chromium oxide and ferric blue. Organicpigments which may be mentioned include carbon black and barium,strontium, calcium and aluminium lakes.

[0095] Among the nacres which may be envisaged, mention may be made ofmica coated with titanium oxide, with iron oxide, with natural pigmentor with bismuth oxychloride, and also coloured titanium mica.

[0096] The fillers can be mineral or synthetic, and lamellar ornon-lamellar. Mention may be made of talc, mica, silica, kaolin, Nylonpowder, polyethylene powder, Teflon, starch, titanium mica, naturalmother-of-pearl, boron nitride, microspheres such as Expancel (NobelIndustrie), Polytrap (Dow Corning) and silicone resin microbeads(Tospearls from Toshiba, for example).

[0097] The composition according to the invention can also comprise anyadditive usually used in the field under consideration, in particular incosmetics, such as antioxidants, fragrances, dyes, essential oils,preserving agents, cosmetic active agents, vitamins, essential fattyacids, sphingolipids, self-tanning compounds such as DHA, sunscreens,surfactants and polymers. These additives can be present in thecomposition in a proportion of 0-10% by weight.

[0098] Needless to say, a person skilled in the art will take care toselect this or these optional additional compound(s), and/or the amountthereof, such that the advantageous properties of the compositionaccording to the invention are not, or are not substantially, adverselyaffected by the addition envisaged.

[0099] The compositions according to the invention are intended to beapplied to the skin of the face and of the body, to mucous membranesand/or to keratin fibres such as the nails, the eyelashes or the hair.

[0100] They can be in any envisageable pharmaceutical form, such as asolid or soft oily gel, optionally comprising water; a solid or gelledoil-in-water, water-in-oil or multiple emulsion; a dispersion of oil inwater; a multi-phase system and in particular a two-phase system. Theycan have the appearance of a cream, a salve, a soft paste, an ointment,a cast or moulded solid and in particular a stick.

[0101] They can be in particular in the form of a stick or a dish; andin particular in the form of a transparent anhydrous rigid gel, and moreespecially in the form of a translucent or transparent anhydrous stick.

[0102] The gelation of the oil is such that a rigid structure in theform of a tube or a stick can be obtained. When they are coloured, thesetubes give, after application, a deposit of homogeneous colour.

[0103] These compositions find an application in particular as bodyhygiene compositions, for example in the form of deodorant sticks; as ahair composition, for example as a styling stick or a make-up stick forthe hair; as a make-up composition for the skin of the face or the bodyor for mucous membranes, for example as a lipstick, a foundation cast asa stick or a dish, a face powder, an eyeshadow, a fixing base to beapplied over a conventional lipstick, a concealer stick, a lip gloss, aneyeliner, a mascara or temporary tattoo products; as a care compositionfor the skin or mucous membranes, for example as a lipcare balm or base,an ointment for the body or a daily care cream; as an antisuncomposition or a self-tanning composition.

[0104] These compositions find a quite special application astransfer-resistant make-up or care compositions, in particular aslipsticks or foundations.

[0105] The invention is illustrated in greater detail in the exampleswhich follow.

[0106] Method for Measuring the Hardness of the Sticks

[0107] The hardness is measured using a TA-XT2 texture analyser (fromRheo), at 22° C., using a smooth acrylic cone with an apex angle of 45°,and a total height which is greater than the penetration distance. Thecone penetrates into the sample to a distance of 5 mm, at a speed of 2mm/s. It is then kept immobile for 300 s, after which it is removed fromthe sample at a speed of 2 mm/s. The force exerted by the sample on themeasuring body is recorded continuously. The maximum force is detectedat the end of the penetration phase. This force value reflects thehardness of the sample.

[0108] Method for Measuring the Transparency or Translucency of theSticks

[0109] The transparency or translucency is measured by measuring thetransmittance, i.e. the percentage of light transmitted through a givensample, in the wavelength range corresponding to the visible range, i.e.between 400 nm and 900 nm.

[0110] This transmittance is measured continuously through a sample ofthickened oil, placed in a glass cuvette with an optical path length of1 cm, by difference with a sample termed the reference sample containingthe same pure oil.

[0111] The measuring instrument is a Perkin-Elmer Lambda UV-Visspectrophotometer.

[0112] The test composition (compound in oil) is heated until it is inthe form of a homogeneous fluid, and is poured directly into themeasuring cuvette. The cuvette is maintained at room temperature untilits contents have cooled. The cuvette is then placed in the machine, thereference cuvette containing pure oil also being placed in the machine.

[0113] The transmittance is measured between 400 nm and 900 nm.

[0114] Standard Preparation of the Compounds

[0115] The compounds of formula (I) for which R—R′ may be preparedaccording to the following 2 processes:

[0116] 1) First Process

[0117] The diamine and two equivalents of triethylamine are dissolved in50 ml of tetrahydrofuran. Two equivalents of acyl chloride dissolved inTHF are added and the reaction mixture is heated to the reflux point ofthe tetrahydrofuran, while monitoring the disappearance of the acylchloride by infrared spectroscopy (most typically, two hours).

[0118] The solution is filtered from the precipitate, the organic phaseis concentrated and a liquid/liquid extraction is performed on the solidcompound obtained. The organic phase is subsequently dried and thenconcentrated, and the solid product obtained is recrystallized.

[0119] 2) Second Process

[0120] 1 mol of diamine H₂N—A—NH₂ and 2 mol of tertiary amine such astriethylamine predissolved in the organic solvent S are added to asolution of 2 mol of acid chloride RCOCl in an organic solvent S such astoluene, chloroform or tetrahydrofuran. After addition, the reactionmedium is refluxed for the time required for the acid chloride and thediamine to disappear (reaction time from about 2 hours to 24 hours). Theaddition of the reagents may also be reversed, i.e. the acid chloridemay be added to a solution of diamine comprising the tertiary amine inthe same relative proportions indicated above. The diamide formed isextracted from the reaction medium according to the extractiontechniques that are well known to those skilled in the art.

EXAMPLE 1

[0121] A compound corresponding to formula (I), in which the tworadicals R and R′ represent a saturated linear chain containing 11carbon atoms, the radical A is a saturated ring containing 6 carbonatoms and the radicals RCONH and RCONH′ are in an ortho trans position,is prepared according to the process described above; this compound istrans-N,N′-bis(dodecanoyl)-1,2-diaminocyclohexane.

[0122] The following are mixed together with stirring, at roomtemperature:

[0123] 200 mg of compoundtrans-N,N′-bis(dodecanoyl)-1,2-diaminocyclohexane and

[0124] 10 ml of liquid paraffin sold under the name Parleam Oil by thecompany Nippon Oil Fats, i.e. a mixture containing 2% of compound.

[0125] The mixture is heated at 120° C. with stirring, untilhomogenized. It then becomes transparent, homogeneous and fluid. Thehomogeneous mixture is then allowed to cool slowly to room temperature.

[0126] A solid, hard translucent composition is thus obtained, whichdoes not collapse outside the container, in the absence of anymechanical or thermal stimulation. This composition may be spread bysimple pressure and allows a uniform, oily film to be obtained.

[0127] The hardness of the stick is measured, and the following resultis obtained: 0.329 N.

[0128] The transparency of the stick is measured: the transmittancevaries in a virtually linear continuous manner, from 3.7% at 400 nm to38% at 900 nm (maximum value).

[0129] This clearly corresponds to a translucent composition.

EXAMPLE 2

[0130] The following are mixed together with stirring, at roomtemperature:

[0131] 200 mg of compound prepared in Example 1, and

[0132] 10 ml of tridecyl trimellitate fatty ester, i.e. a mixturecontaining 2% of compound.

[0133] The mixture is heated at 120° C. with stirring, untilhomogenized. It then becomes transparent, homogeneous and fluid. Thehomogeneous mixture is then allowed to cool slowly to room temperature.

[0134] A solid, hard translucent composition is thus obtained, whichdoes not collapse outside the container, in the absence of anymechanical or thermal stimulation. This composition may be spread bysimple pressure and allows a uniform, oily film to be obtained.

[0135] The hardness of the stick is measured, and the following resultis obtained: 0.320 N.

[0136] The transparency of the stick is measured: the transmittancevaries in a virtually linear continuous manner, from 12% at 400 nm to45% at 900 nm (maximum value).

[0137] This clearly corresponds to a clear translucent, or eventransparent, composition.

EXAMPLE 3

[0138] The following are mixed together with stirring, at roomtemperature:

[0139] 200 mg of compound prepared in Example 1, and

[0140] 10 ml of phenyl trimethicone fluid silicone oil sold under thename Dow Corning 556 Cosmetic Fluid by the company Dow Corning, i.e. amixture containing 2% of compound.

[0141] The mixture is heated at 120° C. with stirring, untilhomogenized. It then becomes transparent, homogeneous and fluid. Thehomogeneous mixture is then allowed to cool slowly to room temperature.

[0142] A solid, hard transparent composition is thus obtained, whichdoes not collapse outside the container, in the absence of anymechanical or thermal stimulation. This composition may be spread bysimple pressure and allows a uniform, oily film to be obtained.

[0143] The hardness of the stick is measured, and the following resultis obtained: 0.470 N.

[0144] The transparency of the stick is measured: the transmittancevaries in a virtually linear continuous manner, from 34% at 400 nm to78% at 900 nm (maximum value).

[0145] This clearly corresponds to a transparent composition.

EXAMPLE 4

[0146] 250 mg of the compound of Example 1 are mixed with 5 ml of liquidparaffin (Parleam oil) and 25 mg of pigment (iron oxides), with stirringat room temperature. The mixture is heated at 120° C. until homogenized.It becomes transparent, coloured, homogeneous and fluid. The mixture isthen allowed to cool slowly to room temperature.

[0147] A solid, coloured composition in the form of a stick is thusobtained. This composition does not show any separation of the pigmentover time. It allows a uniform, oily film to be obtained. Thiscomposition may be used as a foundation or as a lipstick.

1. Composition, in particular a cosmetic or pharmaceutical composition,which is in solid form, comprising an oily phase and at least onecompound of formula (I) below: R—CO—NH—A—NH—CO—R′ in which: R and R′,which may be identical or different, represent a hydrogen atom or asaturated or unsaturated, linear, branched or cyclic hydrocarbon-basedchain containing from 1 to 22 carbon atoms, optionally substituted withone or more groups chosen from aryl (—C₆H₅), ester (—COOR″ with R″ beingan alkyl group containing 2 to 12 carbon atoms), amide (—CONHR″ with R″being an alkyl group containing 2 to 12 carbon atoms), urethane(—OCONHR″ with R″ being an alkyl group containing 2 to 12 carbon atoms)and urea (NHCONHR″ with R″ being an alkyl group containing 2 to 12carbon atoms) groups; and/or optionally containing 1 to 3 hetero atomschosen from O, S and N; and/or optionally substituted with 1 to 4halogen atoms, in particular fluorine atoms, and/or with 1 to 3 hydroxylradicals, on condition that R and R′ are other than hydrogen, and Arepresents a saturated or unsaturated, linear, cyclic or branchedhydrocarbon-based chain containing 1 to 18 carbon atoms, in particular 2to 12 carbon atoms, optionally substituted with one or more groupschosen from aryl (—C₆H₅), ester (—COOR″ with R″ being an alkyl groupcontaining 2 to 12 carbon atoms), amide (—CONHR″ with R″ being an alkylgroup containing 2 to 12 carbon atoms), urethane (—OCONHR″ with R″ beingan alkyl group containing 2 to 12 carbon atoms) and urea (—NHCONHR″ withR″ being an alkyl group containing 2 to 12 carbon atoms) groups; and/oroptionally containing 1 to 3 hetero atoms chosen from O, S and N; and/oroptionally substituted with 1 to 4 halogen atoms, in particular fluorineatoms, and/or with 1 to 3 hydroxyl radicals.
 2. Composition according toclaim 1, characterized in that A represents a saturated or unsaturated,linear, branched, or cyclic hydrocarbon-based chain containing from 4 to10 carbon atoms.
 3. Composition according to claim 1 or 2, characterizedin that A represents a saturated cyclic hydrocarbon-based chaincontaining from 4 to 10 carbon atoms.
 4. Composition according to claim1 or 2, characterized in that A denotes a divalent radical chosen fromcyclohexylene, ethylene, propylene, dodecylene and methylphenyleneradicals.
 5. Composition according to any one of the preceding claims,characterized in that R and R′, which may be identical or different,represent a saturated or unsaturated, linear, branched or cyclichydrocarbon-based chain containing from 6 to 18 carbon atoms. 6.Composition according to any one of the preceding claims, characterizedin that R and R′, which may be identical or different, represent asaturated or unsaturated, linear, branched or cyclic hydrocarbon-basedchain containing from 10 to 14 carbon atoms.
 7. Composition according toany one of the preceding claims, characterized in that R and R′, whichmay be identical or different, represent a linear, saturatedhydrocarbon-based chain containing from 10 to 14 carbon atoms. 8.Composition according to any one of claims 1 to 6, characterized in thatR and R′, which may be identical or different, represent a saturated orunsaturated, linear, branched or cyclic hydrocarbon-based chaincontaining from 11 to 13 carbon atoms.
 9. Composition according to anyone of the preceding claims, characterized in that R and R′, which maybe identical or different, represent a linear saturatedhydrocarbon-based chain containing from 11 to 13 carbon atoms. 10.Composition according to any one of the preceding claims, characterizedin that R and/or R′ represent(s) a linear saturated hydrocarbon-basedchain containing 11 carbon atoms.
 11. Composition according to one ofthe preceding claims, characterized in that R and R′ are identical. 12.Composition according to claim 1, in which the compounds correspond toformula (I) in which: A represents a divalent radical of a saturated orunsaturated but non-aromatic, optionally branched hydrocarbon-based ringcontaining from 4 to 12 carbon atoms, optionally substituted with one ormore groups chosen from aryl (—C₆H₅), ester (—COOR″ with R″ being analkyl group containing 2 to 12 carbon atoms), amide (—CONHR″ with R″being an alkyl group containing 2 to 12 carbon atoms), urethane(—OCONHR″ with R″ being an alkyl group containing 2 to 12 carbon atoms)and urea (—NHCONHR″ with R″ being an alkyl group containing 2 to 12carbon atoms) groups and/or optionally comprising one or more heteroatoms and/or optionally substituted with one or more halogens and/orhydroxyl radicals; R and R′, which may be identical or different,represent a hydrogen atom or a saturated or unsaturated, linear,branched or cyclic, preferably a saturated linear, hydrocarbon-basedchain containing from 10 to 16 carbon atoms, on condition that R and R′are other than hydrogen.
 13. Composition according to claim 12,characterized in that A represents a divalent radical of a saturated orunsaturated but non-aromatic hydrocarbon-based ring containing from 5 to7 carbon atoms.
 14. Composition according to claim 12, characterized inthat A denotes a divalent radical of a saturated hydrocarbon-based ringcontaining from 4 to 12 carbon atoms.
 15. Composition according to oneof claims 12 to 14, characterized in that A denotes a divalent radicalof a saturated hydrocarbon-based ring containing from 5 to 7 carbonatoms.
 16. Composition according to one of claims 12 to 15,characterized in that A denotes a cyclohexylene radical.
 17. Compositionaccording to one of claims 12 to 16, characterized in that A denotes a1,2-cyclohexylene radical.
 18. Composition according to any one ofclaims 12 to 17, characterized in that R and R′, which may be identicalor different, denote a saturated or unsaturated, linear, branched orcyclic, preferably a saturated linear, hydrocarbon-based chaincontaining from 10 to 14 carbon atoms.
 19. Composition according to anyone of claims 12 to 17, characterized in that R and R′, which may beidentical or different, represent a saturated linear hydrocarbon-basedchain containing from 10 to 16 carbon atoms.
 20. Composition accordingto any one of claims 12 to 18, characterized in that R and R′, which maybe identical or different, denote a saturated linear hydrocarbon-basedchain containing from 10 to 14 carbon atoms.
 21. Composition accordingto one of claims 12 to 20, characterized in that R and/or R′ denote(s) alinear saturated hydrocarbon-based chain containing 11 carbon atoms. 22.Composition according to one of claims 12 to 20, characterized in that Rand R′ are identical.
 23. Composition according to claim 1,characterized in that the compounds correspond to formula (I) in which:A represents a saturated, linear or branched hydrocarbon-based chaincontaining from 2 to 18 carbon atoms, optionally substituted with one ormore groups chosen from aryl (—C₆H₅), ester (—COOR″ with R″ being analkyl group containing 2 to 12 carbon atoms), amide (—CONHR″ with R″being an alkyl group containing 2 to 12 carbon atoms), urethane(—OCONHR″ with R″ being an alkyl group containing 2 to 12 carbon atoms)and urea (—NHCONHR″ with R″ being an alkyl group containing 2 to 12carbon atoms) groups, and/or optionally comprising one or more heteroatoms and/or optionally substituted with one or more halogens and/orhydroxyl radicals; R and R′, which may be identical or different,represent a hydrogen atom or a saturated or unsaturated, linear,branched or cyclic hydrocarbon-based chain containing from 10 to 20carbon atoms, on condition that R and R′ are other than hydrogen. 24.Composition according to claim 23, characterized in that A represents asaturated, linear or branched hydrocarbon-based chain containing from 3to 12 carbon atoms.
 25. Composition according to either of claims 23 and24, characterized in that R and R′, which may be identical or different,represent a saturated or unsaturated, linear, branched or cyclichydrocarbon-based chain containing from 10 to 20 carbon atoms. 26.Composition according to one of claims 23 to 25, characterized in that Rand R′, which may be identical or different, represent a saturated orunsaturated, linear, branched or cyclic hydrocarbon-based chaincontaining from 11 to 18 carbon atoms.
 27. Composition according to oneof claims 23 to 26, characterized in that R and R′, which may beidentical or different, represent a saturated or unsaturated, linear,branched or cyclic hydrocarbon-based chain containing from 11 to 13carbon atoms.
 28. Composition according to one of claims 23 to 26,characterized in that R and R′, which may be identical or different,represent a saturated linear hydrocarbon-based chain containing from 10to 20 carbon atoms.
 29. Composition according to one of claims 23 to 26and 28, characterized in that R and R′, which may be identical ordifferent, represent a saturated linear hydrocarbon-based chaincontaining from 11 to 18 carbon atoms.
 30. Composition according to oneof claims 23 to 29, characterized in that R and R′, which may beidentical or different, represent a saturated linear hydrocarbon-basedchain containing from 11 to 13 carbon atoms.
 31. Composition accordingto one of claims 23 to 30, characterized in that R and/or R′represent(s) a saturated linear hydrocarbon-based chain containing from11 carbon atoms.
 32. Composition according to one of claims 23 to 31,characterized in that R and R′ are identical.
 33. Composition accordingto claim 1, in which the compounds correspond to formula (I) in which: Arepresents an aryl or aralkyl ring containing from 6 to 12 carbon atoms,optionally substituted with one or more groups chosen from ester (—COOR″with R″ being an alkyl group containing 2 to 12 carbon atoms), amide(—CONHR″ with R″ being an alkyl group containing 2 to 12 carbon atoms),urethane (—OCONHR″ with R″ being an alkyl group containing 2 to 12carbon atoms) and urea (—NHCONHR″ with R″ being an alkyl groupcontaining 2 to 12 carbon atoms) groups and/or optionally comprising oneor more hetero atoms and/or optionally substituted with one or morehalogens and/or hydroxyl radicals; R and R′, which may be identical ordifferent, represent a hydrogen atom or a saturated or unsaturated,linear, branched or cyclic hydrocarbon-based chain containing from 6 to18 carbon atoms, on condition that R and R′ are other than hydrogen. 34.Composition according to claim 33, characterized in that A represents anaryl or aralkyl ring containing from 6 to 8 carbon atoms. 35.Composition according to claim 33 or 34, characterized in that R and R′,which may be identical or different, represent a saturated orunsaturated, linear, branched or cyclic hydrocarbon-based chaincontaining from 10 to 16 carbon atoms.
 36. Composition according to oneof claim 33 to 35, characterized in that R and R′, which may beidentical or different, represent a saturated or unsaturated, linear,branched or cyclic hydrocarbon-based chain containing from 11 to 13carbon atoms.
 37. Composition according to either of claims 33 and 34,characterized in that R and R′, which may be identical or different,represent a saturated linear hydrocarbon-based chain containing from 6to 18 carbon atoms.
 38. Composition according to one of claims 33 to 35and 37, characterized in that R and R′, which may be identical ordifferent, represent a saturated linear hydrocarbon-based chaincontaining from 10 to 16 carbon atoms.
 39. Composition according to oneof claims 33 to 38, characterized in that R and R′, which may beidentical or different, represent a saturated linear hydrocarbon-basedchain containing from 11 to 13 carbon atoms.
 40. Composition accordingto one of claims 33 to 39, characterized in that R and R′, which may beidentical or different, represent a saturated linear hydrocarbon-basedchain containing 11 carbon atoms.
 41. Composition according to one ofclaims 33 to 40, characterized in that R and R′ are identical. 42.Composition according to one of claims 1, 6 to 11, 23 and 25 to 32, inwhich the radical A represents a divalent radical of ethylene,propylene, isopropylene, butylene, isobutylene, pentylene, hexylene,dodecylene or dodecanylene type.
 43. Composition according to one ofclaims 1, 6 to 11, 33 and 35 to 41, in which A represents a divalentradical chosen from benzylene, phenylene, methylphenylene, bis-phenyleneand naphthalene radicals.
 44. Composition according to one of claims 1to 3, 12 to 17, 23 and 24, in which the radicals R and R′ are chosen,independently of each other, from pentyl, hexyl, decyl, undecyl,dodecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl,3-dodecyloxy-propionyl, 3-octadecyloxypropionyl, 3-dodecyloxypentyl,3-octadecyloxypentyl and 11-hydroxyheptadecyl radicals.
 45. Compositionaccording to either of claims 1 and 2, in which the compounds of formula(I) are chosen from compounds corresponding to one of the followingformulae;

in which R and R′ have the meaning given in claim
 1. 46. Compositionaccording to the preceding claim, characterized in that R and R′, whichmay be identical or different, represent a saturated or unsaturated,linear, branched or cyclic hydrocarbon-based chain containing from 6 to18 carbon atoms.
 47. Composition according to claim 45 or 46,characterized in that R and R′, which may be identical or different,represent a saturated or unsaturated, linear, branched or cyclichydrocarbon-based chain containing from 10 to 14 carbon atoms. 48.Composition according to either of claims 46 and 47, characterized inthat R and R′, which may be identical or different, represent a linearsaturated hydrocarbon-based chain containing from 10 to 14 carbon atoms.49. Composition according to either of claims 46 and 47, characterizedin that R and R′, which may be identical or different, represent asaturated or unsaturated, linear, branched or cyclic hydrocarbon-basedchain containing from 11 to 13 carbon atoms.
 50. Composition accordingto any one of claims 46 to 49, characterized in that R and R′, which maybe identical or different, represent a linear saturatedhydrocarbon-based chain containing from 11 to 13 carbon atoms. 51.Composition according to any one of claims 46 to 50, characterized inthat R and/or R′ represent(s) a linear saturated hydrocarbon-based chaincontaining 11 carbon atoms.
 52. Composition according to one of claims46 to 50, characterized in that R and R′ are identical.
 53. Compositionaccording to one of claims 1 to 22 and 46 to 52, in which the compoundof formula (I) is chosen from:N,N′-bis(dodecanoyl)-1,2-diaminocyclohexaneN,N′-bis(dodecanoyl)-1,3-diaminocyclohexaneN,N′-bis(dodecanoyl)-1,4-diaminocyclohexane
 54. Composition according toone of claims 1 to 11, 23 to 32 and 46 to 52, in which the compound offormula (I) is chosen from: N,N′-bis(dodecanoyl)-1,2-ethylenediamineN,N′-bis(dodecanoyl)-1-methyl-1,2-ethylenediamineN,N′-bis(dodecanoyl)-1,3-diaminopropaneN,N′-bis(dodecanoyl)-1,12-diaminododecane
 55. Composition according toone of claims 1 to 11, 33 to 41 and 46 to 52, in which the compound offormula (I) is N,N′-bis(dodecanoyl)-3,4-diaminotoluene.
 56. Compositionaccording to one of the preceding claims, in which the compounds offormula (I) are present in an amount of between 1% and 40% by weight,for example between 2% and 15% by weight, relative to the total weightof the composition, and better still between 4% and 12% by weight, oreven between 5% and 10% by weight.
 57. Composition according to one ofthe preceding claims, in which the oily phase comprises an oil chosenfrom hydrocarbon-based oils and/or silicone oils and/or fluoro oils, ofanimal, plant, mineral or synthetic origin.
 58. Composition according toone of the preceding claims, in which the oily phase comprises an oilchosen from-hydrocarbon-based oils of animal origin; hydrocarbon-basedplant oils; linear or branched hydrocarbons of mineral or syntheticorigin; synthetic esters and ethers; hydroxylated esters; polyol esters;fatty alcohols containing from 12 to 26 carbon atoms; partiallyhydrocarbon-based and/or silicone-containing fluoro oils; volatile ornon-volatile, linear or cyclic polymethylsiloxanes (PDMS);alkyldimethicones; silicones modified with aliphatic and/or aromaticgroups, which are optionally fluorinated, or with functional groups suchas hydroxyl, thiol and/or amine groups; phenylsilicone oils; mixturesthereof.
 59. Composition according to one of the preceding claims, inwhich the oily phase comprises an oil chosen from: perhydrosqualene;liquid triglycerides of fatty acids of 4 to 10 carbon atoms; sunfloweroil, corn oil, soybean oil, marrow oil, grapeseed oil, groundnut oil,sweet almond oil, beauty-leaf oil, palm oil, sesame oil, hazelnut oil,apricot oil, macadamia oil, castor oil, avocado oil; caprylic/capricacid triglycerides; jojoba oil, karite butter; liquid paraffins,petroleum jelly, polydecenes, purcellin oil, hydrogenated polyisobutene;isopropyl myristate, 2-ethylhexyl palmitate, 2-octyldodecyl stearate,2-octyldodecyl erucate, isostearyl isostearate; hydroxylated esters suchas isostearyl lactate, octyl hydroxystearate, octyldodecylhydroxystearate, diisostearyl malate, triisocetyl citrate, and fattyalkyl heptanoates, octanoates and decanoates; propylene glycoldioctanoate, neopentyl glycol diheptanoate or diethylene glycoldiisononanoate; and pentaerythritol esters; tridecyl trimellitate;octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol,oleyl alcohol; polyphenylmethylsiloxanes or phenyltrimethicones;mixtures thereof.
 60. Composition according to one of the precedingclaims, in which the oily phase comprises at least 50% by weight, inparticular at least 75% by weight, or even 100% by weight, of volatileoils.
 61. Composition according to one of claims 1 to 60, in which theoily phase comprises silicone oils, in particular in an amount of about40-80% by weight of the oily phase, in particular of about 60-75% byweight, or even 100% by weight of silicone oil.
 62. Compositionaccording to one of the preceding claims, which have a hardness ofbetween 0.04N and 3N, preferably between 0.1 and 2.5N and in particularbetween 0.2 and 2N.
 63. Composition according to one of the precedingclaims, comprising less than about 5% by weight of wax, relative to thetotal weight of the composition, preferably less than 2% by weight, oreven less than 0.5% by weight, of wax.
 64. Composition according to oneof claims 1 to 62, comprising 0% by weight of waxes.
 65. Compositionaccording to one of the preceding claims, which has a maximum lighttransmittance value, irrespective of the wavelength of between 400 and800 nm, through a sample 1 cm thick, of between 2% and 100% andpreferably of at least 50%.
 66. Composition according to any one of thepreceding claims, characterized in that it comprises at least oneadditive chosen from antioxidants, fragrances, dyes, essential oils,preserving agents, cosmetic active agents, vitamins, essential fattyacids, sphingolipids, self-tanning compounds, sunscreens, surfactants,polymers, pigments, nacres, fillers and moisturizers.
 67. Compositionaccording to one of the preceding claims, which is in the form of asolid or soft oily gel, optionally comprising water; a solid or gelledoil-in-water, water-in-oil or multiple emulsion; a dispersion of oil inwater; a multi-phase system; a cream, an ointment, a soft paste, asalve, a cast or moulded solid or a stick.
 68. Composition according toany one of the preceding claims, characterized in that it is in the formof a solid composition.
 69. Composition according to one of thepreceding claims, which is in the form of deodorant sticks; a stylingstick or a make-up stick for the hair; a make-up composition for theskin of the face or the body, a lipstick, a foundation cast as a stickor a dish, a face powder, an eyeshadow, a fixing base to be applied overa conventional lipstick, a concealer stick, a lip gloss, an eyeliner, amascara, temporary tattoo products, a care composition for the skin ormucous membranes, a lipcare balm or base, an ointment for the body or adaily care cream, an antisun composition or a self-tanning composition.